Battery Module Busbar Partition Walls for Short-Circuit Isolation
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Solution Overview
Problem
Conventional battery modules are prone to safety issues due to short-circuiting between busbars, which can lead to fires, which can lead to safety hazards and are prone to safety hazards and are prone to safety hazards due to the narrow intervals between busbars, causing moisture generation, electrolyte leakage, and corrosion, resulting in short circuits.
Innovation Solution
A battery module with a double partition wall structure between busbars, including first and second partition walls, and a first and second space part to secure intervals, along with insulating covers and jaw parts to prevent contact between busbars, thereby minimizing corrosion and short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single partition wall is formed between busbars, then the device complexity is reduced, but the reliability deteriorates due to short circuit risk
Solution Approach 1:
The partition wall is divided into multiple segments (first partition wall and second partition wall) that are arranged in series between adjacent busbars. This segmentation creates multiple barrier layers, enhancing short circuit prevention while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The partition walls act as intermediary protective structures between the busbars, introducing insulating materials as mediators that prevent direct contact between conductive busbars. This intermediary layer blocks the harmful electrical connection while allowing the busbar structure to function normally.
2Reliability
If narrow intervals are maintained between busbars, then the productivity is improved through compact design, but the reliability deteriorates due to moisture and electrolyte leakage
Solution Approach 1:
The partition walls are constructed as thin film-like insulating structures that provide effective corrosion protection while occupying minimal space. These thin protective barriers prevent moisture and electrolyte penetration without requiring large clearance distances between busbars, thus maintaining compact design.
Solution Approach 2:
The partition walls utilize composite insulating materials that combine protective properties with space efficiency. These composite structures provide robust corrosion resistance against moisture and electrolytes while maintaining a compact profile that does not significantly increase the overall volume between busbars.
3Reliability
If insulating covers are added to protect busbars, then the reliability is improved through corrosion prevention, but the device complexity increases
Solution Approach 1:
The insulating covers are merged with the existing busbar frame structure, integrating protective functionality into the structural framework. This combination eliminates the need for separate protective components, reducing overall device complexity while maintaining reliable corrosion protection for the busbars.
Data Source
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AI summary
A battery module according to one embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked, a module frame for housing the battery cell stack, a busbar frame for covering the front and rear surfaces of the battery cell stack; and a plurality of busbars attached to the busbar frame, wherein first and second partition walls are formed between the plurality of busbars.